2018年考研英语一试卷真题(后附答案详解).docx

2018年考研英语一真题原文及答案解析完整版 Section I Use of English Directions： Read the following text.Choose the best word(s)for each numbered blank and mark A,B,C or D on the ANSWER SHEET.(10 points) Trust is a tricky business.On the one hand,its a necessary condition_____(1)many worthwhile things:child care,friendships,etc.On the other hand,putting your_____(2)in the wrong place often carries a high_____(3). _____(4),why do we trust at all?Well,because it feels good._____(5)people place their trust in an individual or an institution,their brains release oxytocin,a hormone that_____(6)pleasurable feelings and triggers the herding instruct that?leads sheep to flock together for safety and?prompts humans to_____(7)with one another.Swiss?Scientists have found that exposure_____(8)this hormone puts us in a trusting_____(9):In a study,researchers sprayed oxytocin into the noses of half the subjects;those subjects were ready to lend significantly higher amounts of money to strangers than were their_____(10)who inhaled something else. _____(11)for us,we also have a sixth sense for dishonesty that may_____(12)us.A Canadian study found that children as young as 14 months can differentiate_____(13)a credible person and a dishonest one.Sixty toddlers were each_____(14)to an adult tester holding a plastic container.The tester would ask,“Whats in here?”before looking into the container,smiling,and exclaiming,“Wow!”Each subject was then invited to look_____(15).Half of them found a toy;the other half_____(16)the container was empty-and realized the tester had_____(17)them. Among the children who had not been tricked,the majority were_____(18)to cooperate with the tester in learning a new skill,demonstrating that they trusted his leadership._____(19),only five of the 30 children paired with the_____(20)tester participated in a follow-up activity. 1.A．on B．Like C．for? D．from 2.A．faith B．Concern C．attention D．interest 3.A．benefit B．debt C．hope D．price 4.A．Therefore B．Then C．Instead D．Again 5.A．Until